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Jordan Whited f0230ce0b5 go.mod,net/tstun,wgengine/netstack: implement gVisor TCP GRO for Linux (#12921) ... This commit implements TCP GRO for packets being written to gVisor on Linux. Windows support will follow later. The wireguard-go dependency is updated in order to make use of newly exported IP checksum functions. gVisor is updated in order to make use of newly exported stack.PacketBuffer GRO logic. TCP throughput towards gVisor, i.e. TUN write direction, is dramatically improved as a result of this commit. Benchmarks show substantial improvement, sometimes as high as 2x. High bandwidth-delay product paths remain receive window limited, bottlenecked by gVisor's default TCP receive socket buffer size. This will be addressed in a follow-on commit. The iperf3 results below demonstrate the effect of this commit between two Linux computers with i5-12400 CPUs. There is roughly ~13us of round trip latency between them. The first result is from commit 57856fc without TCP GRO. Starting Test: protocol: TCP, 1 streams, 131072 byte blocks - - - - - - - - - - - - - - - - - - - - - - - - - Test Complete. Summary Results: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 4.77 GBytes 4.10 Gbits/sec 20 sender [ 5] 0.00-10.00 sec 4.77 GBytes 4.10 Gbits/sec receiver The second result is from this commit with TCP GRO. Starting Test: protocol: TCP, 1 streams, 131072 byte blocks - - - - - - - - - - - - - - - - - - - - - - - - - Test Complete. Summary Results: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 10.6 GBytes 9.14 Gbits/sec 20 sender [ 5] 0.00-10.00 sec 10.6 GBytes 9.14 Gbits/sec receiver Updates #6816 Signed-off-by: Jordan Whited <jordan@tailscale.com>		1 year ago
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art	all: use Go 1.22 range-over-int	2 years ago
captivedetection	net/captivedetection: call SetHealthy once connectivity restored (#12974)	1 year ago
connstats	all: use Go 1.22 range-over-int	2 years ago
dns	net/dns, cmd/tailscaled: plumb system health tracker into dns cleanup (#12969)	1 year ago
dnscache	net/dnscache: use parent context to perform lookup	2 years ago
dnsfallback	net/dnsfallback: set CanPort80 in static DERPMap (#12929)	1 year ago
flowtrack	net/flowtrack: fix, test String method	1 year ago
ipset	go.mod: bump bart	1 year ago
ktimeout	net/ktimeout: add a package to set TCP user timeout	2 years ago
memnet	net/memnet: export the network name (#9111)	2 years ago
netaddr	all: update copyright and license headers	3 years ago
netcheck	health: introduce captive-portal-detected Warnable (#12707)	1 year ago
neterror	net/neterror, wgengine/magicsock: use UDP GSO and GRO on Linux (#7791)	3 years ago
netkernelconf	ipn/{ipnlocal,localapi},net/netkernelconf,client/tailscale,cmd/containerboot: optionally enable UDP GRO forwarding for containers (#12410)	2 years ago
netknob	all: update copyright and license headers	3 years ago
netmon	all: add test for package comments, fix, add comments as needed	1 year ago
netns	net/netns: remove some logspam by avoiding logging parse errors due to unspecified addresses	1 year ago
netstat	all: add test for package comments, fix, add comments as needed	1 year ago
netutil	all: add test for package comments, fix, add comments as needed	1 year ago
packet	net/flowtrack: optimize Tuple type for use as map key	1 year ago
ping	net/ping: fix ICMP echo code field to 0	2 years ago
portmapper	all: use math/rand/v2 more	2 years ago
proxymux	all: cleanup unused code, part 1 (#10661)	2 years ago
routetable	net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon	2 years ago
socks5	net/socks5: add password auth support	3 years ago
sockstats	net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon	2 years ago
speedtest	all: update copyright and license headers	3 years ago
stun	ci: enable checklocks workflow for specific packages	1 year ago
stunserver	all: use Go 1.22 range-over-int	2 years ago
tcpinfo	all: use Go 1.22 range-over-int	2 years ago
tlsdial	net/tlsdial: relax self-signed cert health warning	1 year ago
tsaddr	net/ipset, wgengine/filter/filtertype: add split-out packages	1 year ago
tsdial	go.mod: bump bart	1 year ago
tshttpproxy	all: use Go 1.22 range-over-int	2 years ago
tstun	go.mod,net/tstun,wgengine/netstack: implement gVisor TCP GRO for Linux (#12921)	1 year ago
wsconn	ci: enable checklocks workflow for specific packages	1 year ago